ES2234989T3 - GEARBOX FOR A HYBRID PROPULSION VEHICLE. - Google Patents

GEARBOX FOR A HYBRID PROPULSION VEHICLE.

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Publication number
ES2234989T3
ES2234989T3 ES02290383T ES02290383T ES2234989T3 ES 2234989 T3 ES2234989 T3 ES 2234989T3 ES 02290383 T ES02290383 T ES 02290383T ES 02290383 T ES02290383 T ES 02290383T ES 2234989 T3 ES2234989 T3 ES 2234989T3
Authority
ES
Spain
Prior art keywords
shaft
rotation
electric motor
axis
gearbox
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES02290383T
Other languages
Spanish (es)
Inventor
Jean-Paul Petiot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Application granted granted Critical
Publication of ES2234989T3 publication Critical patent/ES2234989T3/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4808—Electric machine connected or connectable to gearbox output shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0043—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising four forward speeds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)
  • Structure Of Transmissions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Transmission Device (AREA)
  • Transmission Devices (AREA)

Abstract

The gearbox for a hybrid drive motor vehicle has a first main drive shaft (X,X') driven by the internal combustion engine (1) and a secondary drive shaft (Y,Y') to receive the drive. A secondary main shaft (Z,Z') is driven for rotation by the electric motor (2) and via a transmission. The secondary main shaft has a driven shaft (7,8) with a gear (70) for rotary coupling with the secondary drive shaft. The transmission allows drive from the electric motor to the driven shaft directly or via a step down ratio.

Description

Caja de cambios para un vehículo de propulsión híbrida.Gearbox for a propulsion vehicle hybrid

La presente invención se refiere a una caja de cambios para un vehículo de propulsión híbrida.The present invention relates to a box of Changes for a hybrid propulsion vehicle.

En la presente descripción, y en las reivindicaciones que le siguen, se entiende por la expresión "propulsión híbrida", una propulsión realizada a partir de un motor térmico y/o de un motor eléctrico, estando el vehículo equipado con estos dos tipos de motor.In this description, and in the claims that follow, is understood by the expression "hybrid propulsion", a propulsion made from a thermal engine and / or an electric motor, the vehicle being Equipped with these two types of engine.

La caja de cambios objeto de la invención es del tipo que presenta un eje primario y un eje secundario paralelos, a saber un eje primario motriz y un eje secundario receptor del movimiento, que acciona un diferencial que impulsa a su vez las ruedas motrices del vehículo.The gearbox object of the invention is of the type presenting a parallel primary axis and secondary axis, to know a primary motor axis and a secondary axis receiving the movement, which triggers a differential that drives the driving wheels of the vehicle.

El motor eléctrico de un grupo motopropulsor híbrido está insertado generalmente en la caja de cambios o en el cárter del embrague, o también en el cárter del convertidor de par si la caja de cambios es automática.The electric motor of a power unit hybrid is usually inserted in the gearbox or in the clutch housing, or also in the torque converter housing If the gearbox is automatic.

Esto permite asegurar una conexión mecánica directa entre el motor eléctrico y la caja de cambios, pero supone un alargamiento considerable del conjunto de la transmisión. La implantación del grupo motopropulsor en la parte delantera del vehículo es difícil y es necesaria una reestructuración, a veces global, del grupo motopropulsor.This allows to ensure a mechanical connection direct between the electric motor and the gearbox, but it means considerable lengthening of the transmission assembly. The power unit implantation in the front of the vehicle is difficult and restructuring is necessary, sometimes global, of the power unit.

Así, en el documento WO 01/03962, que representa el estado de la técnica más próximo, se describe un dispositivo de transmisión asociado a un motor térmico y a un motor eléctrico.Thus, in WO 01/03962, which represents the closest state of the art, a device of transmission associated with a thermal engine and an electric motor.

El motor térmico acciona un primer árbol que porta una serie de piñones de la caja de cambios y el motor eléctrico acciona un segundo árbol que porta la otra serie de piñones de la caja de cambios. El dispositivo de transmisión comprende igualmente un árbol de salida que puede estar unido al primer o al segundo árbol. Así, cada uno de los árboles conectados al motor térmico o al motor eléctrico puede ser o bien un árbol conductor, o bien un árbol conducido.The thermal engine drives a first shaft that carries a series of gearbox and engine sprockets electric drives a second tree that carries the other series of gearbox sprockets. The transmission device It also includes an output shaft that can be attached to the First or second tree. Thus, each of the connected trees the thermal motor or the electric motor can be either a tree driver, or a driven tree.

Además, el dispositivo de transmisión no está concebido para ser compacto. Al contrario, la introducción de una segunda fuente de potencia, eléctrica, en un extremo del árbol, alarga el sistema de transmisión.In addition, the transmission device is not Designed to be compact. On the contrary, the introduction of a second power source, electrical, at one end of the tree, lengthens the transmission system.

Por ello ya han sido propuestas otras soluciones para aumentar la compacidad.Therefore, other solutions have already been proposed to increase compactness.

Particularmente, se puede citar el documento FR-92 04484 que describe un grupo motopropulsor que presenta un motor térmico y un motor eléctrico. Este motor eléctrico está montado sobre la caja de cambios, en el que el árbol primario es solidario con el motor térmico. Por otra parte el motor eléctrico está acoplado al árbol secundario de esta caja de cambios mediante unos medios reductores.In particular, the document can be cited FR-92 04484 describing a power unit that It presents a thermal motor and an electric motor. This electric motor is mounted on the gearbox, in which the primary tree It is in solidarity with the thermal engine. On the other hand the electric motor is coupled to the secondary tree of this gearbox by reducing means.

Igualmente se puede citar el documento FR-97 16265 que describe un dispositivo de transmisión para vehículos de propulsión híbrida, en el cual el motor eléctrico está igualmente dispuesto sobre la caja de cambios, el árbol primario de la cual está conectado con el motor térmico. Mediante unos piñones dispuestos en el cárter de la caja de cambios y del árbol primario, la potencia motriz del motor eléctrico puede ser transmitida al árbol secundario de la caja de cambios.You can also cite the document FR-97 16265 describing a device transmission for hybrid propulsion vehicles, in which the electric motor is also arranged on the gearbox, The primary shaft of which is connected to the thermal engine. By means of pinions arranged in the gearbox housing and from the primary shaft, the motor power of the electric motor can be transmitted to the secondary tree of the gearbox.

Así, los dispositivos previstos en estos dos documentos permiten evitar una conexión de la rotación del motor eléctrico en el extremo del árbol, lo que contribuye a la compacidad del dispositivo, a pesar de la presencia de un motor eléctrico.Thus, the devices provided in these two documents allow to avoid a motor rotation connection electric at the end of the tree, which contributes to compactness of the device, despite the presence of an electric motor.

La invención tiene como objetivo proponer una caja de cambios del tipo mencionado, que ofrezca unas mejores condiciones de rodadura y más relaciones de velocidad, manteniendo la compacidad del conjunto y que únicamente necesite unas sencillas adaptaciones de las cajas de cambios clásicas concebidas para ser accionadas por un motor térmico.The invention aims to propose a gearbox of the mentioned type, which offers better rolling conditions and more speed ratios, maintaining the compactness of the set and only need a few simple adaptations of the classic gearboxes designed to be driven by a thermal engine.

Así, la invención se refiere a una caja de cambios para vehículos de propulsión híbrida, realizada a partir de un motor térmico y/o de un motor eléctrico, que presenta al menos un primer eje primario motriz cuya rotación es accionada por el motor térmico a través de un embrague, así como un tren secundario receptor del movimiento.Thus, the invention relates to a box of Changes for hybrid propulsion vehicles, made from a thermal engine and / or an electric motor, which has at least one first primary drive shaft whose rotation is driven by the motor thermal through a clutch as well as a secondary train movement receiver.

Según la invención, la caja de cambios presenta un segundo eje primario motriz, siendo paralelos los ejes primarios y el eje secundario, siendo accionada la rotación del segundo eje primario por el motor eléctrico a través de un sistema de transmisión, y que comprende un árbol conductor que porta en uno de sus extremos unos medios de conexión de la rotación con el tren secundario, y que dicho sistema de transmisión permite transmitir la potencia del motor eléctrico al árbol conductor, sea en su totalidad, sea según una relación de desmultiplicación determinada.According to the invention, the gearbox presents a second primary motor axis, the primary axes being parallel and the secondary axis, the rotation of the second axis being driven primary by the electric motor through a system of transmission, and comprising a conductive shaft that carries in one of its ends means of connection of the rotation with the train secondary, and that said transmission system allows transmitting the electric motor power to the drive shaft, be it in your totality, either according to a gear ratio determined.

Preferentemente, el sistema de transmisión presenta:Preferably, the transmission system presents:

un árbol que porta un primer piñón loco, y que es solidario con la rotación del árbol conductor,a tree that carries a first crazy pinion, and that is in solidarity with the rotation of the driving shaft,

un segundo piñón portado por el árbol del rotor del motor eléctrico cuya rotación es solidaria,a second pinion carried by the rotor shaft of the electric motor whose rotation is solidary,

un piñón deslizante susceptible de hacer solidarios el árbol del sistema de transmisión con el árbol del rotor o el primer piñón loco, ya sliding pinion capable of making the transmission system shaft with the shaft rotor or the first crazy pinion, and

un eje intermedio que porta dos piñones cuya rotación es solidaria y que engranan con el primer y el segundo piñón.an intermediate shaft that carries two pinions whose rotation is supportive and they engage with the first and second pinion.

En una primera variante de realización, el sistema de transmisión está dispuesto en un extremo del motor eléctrico, opuesto al de los medios de conexión en rotación entre el árbol conductor del segundo eje primario y el eje secundario.In a first embodiment variant, the transmission system is arranged at one end of the engine electrical, opposite to the connection means in rotation between the driving shaft of the second primary axis and the secondary axis.

En este caso, el árbol del rotor del motor eléctrico es tubular y envuelve el árbol del sistema de transmisión.In this case, the motor rotor shaft electric is tubular and wraps the system tree transmission.

En una segunda variante de realización de esta caja de cambios, el sistema de transmisión está dispuesto entre el motor eléctrico y los medios de conexión en rotación entre el árbol conductor del segundo eje primario y el eje secundario.In a second embodiment variant of this gearbox, the transmission system is arranged between the electric motor and the connection means in rotation between the shaft driver of the second primary axis and the secondary axis.

En este caso, el árbol del rotor del motor eléctrico, el árbol del sistema de transmisión y el árbol conductor están entonces de forma ventajosa prácticamente alineados.In this case, the motor rotor shaft electric, transmission system shaft and driving shaft they are then advantageously practically aligned.

Los medios de conexión entre la rotación del segundo eje primario y la rotación del eje secundario comprenden, por ejemplo, un piñón portado por el árbol conductor del segundo eje primario, otro piñón portado por el árbol conducido del eje secundario y una correa que une los dos piñones.The connection means between the rotation of the second primary axis and secondary axis rotation comprise, for example, a pinion carried by the driving shaft of the second shaft primary, another pinion carried by the shaft driven shaft secondary and a belt that joins the two pinions.

La invención se refiere igualmente a un grupo motopropulsor para vehículos de propulsión híbrida que comprende un motor térmico y un motor eléctrico dispuesto en la periferia de la caja de cambios del vehículo, siendo esta caja de cambios semejante a la descrita anteriormente.The invention also relates to a group motor propeller for hybrid propulsion vehicles comprising a thermal engine and an electric motor arranged on the periphery of the vehicle gearbox, this gearbox being similar to the one described above.

Preferentemente, el segundo eje primario y el motor eléctrico están situados por encima del primer eje primario y del eje secundario.Preferably, the second primary axis and the electric motor are located above the first primary axis and of the secondary axis.

Se comprenderá mejor la invención y otros objetivos, ventajas y características de ésta se pondrán claramente de manifiesto a partir de la siguiente descripción, que hace referencia a los dibujos adjuntos que representan unos ejemplos de realización de la invención en los cuales:The invention and others will be better understood. objectives, advantages and characteristics of it will be clearly stated manifest from the following description, which makes reference to the attached drawings that represent some examples of embodiment of the invention in which:

- la figura 1 es una vista general, esquemática, de una primera variante de realización de la caja de cambios según la invención y- Figure 1 is an overview, schematic, of a first variant of realization of the gearbox according to the invention and

- la figura 2 es una vista general, esquemática, de una segunda variante de realización del sistema de transmisión según la invención.- Figure 2 is an overview, schematic, of a second variant embodiment of the transmission system according to the invention.

Los elementos comunes a las dos figuras se designarán por las mismas referencias.The elements common to the two figures are will designate by the same references.

En la figura 1, se designan por las referencias XX' y ZZ', el primer y el segundo ejes primarios respectivamente, y por YY' se designa el eje secundario de la caja de cambios.In figure 1, they are designated by the references XX 'and ZZ', the first and second primary axes respectively, and by YY 'the secondary axis of the gearbox is designated.

Estos tres ejes son paralelos, dispuestos uno cerca del otro.These three axes are parallel, arranged one close to each other.

En el ejemplo ilustrado, el segundo eje primario ZZ' está situado por encima del primer eje primario XX', el cual está situado por encima del eje secundario YY'.In the illustrated example, the second primary axis ZZ 'is located above the first primary axis XX', which It is located above the secondary axis YY '.

El motor térmico que es, por ejemplo, un motor de cuatro tiempos, está designado por la referencia 1, mientras que el motor eléctrico está designado por la referencia 2.The thermal engine that is, for example, a motor of four times, is designated by reference 1, while the Electric motor is designated by reference 2.

El primer eje primario XX' está conectado con la rotación del motor eléctrico 1, mientras que el segundo eje primario ZZ' está conectado con la rotación del motor eléctrico 2.The first primary axis XX 'is connected to the rotation of electric motor 1, while the second primary axis ZZ 'is connected to the rotation of the electric motor 2.

El motor eléctrico 2 está dispuesto aquí sobre el primer eje primario XX' y sobre el eje secundario YY'.The electric motor 2 is arranged here on the first primary axis XX 'and on the secondary axis YY'.

La invención no se limita a esta disposición, es evidente que el motor eléctrico no está situado en el extremo del primer eje primario XX' y no está conectado con él mediante una conexión directa, sino que al contrario está dispuesto de forma desplazada en relación al primer eje primario y al eje secundario. De forma más general, el motor eléctrico puede estar dispuesto en un lugar cualquiera de la periferia de la caja de cambios.The invention is not limited to this provision, it is Obviously the electric motor is not located at the end of the first primary axis XX 'and is not connected to it by a direct connection, but instead is arranged so displaced in relation to the first primary axis and the secondary axis. More generally, the electric motor may be arranged in a any place on the periphery of the gearbox.

Para ello la caja de cambios presenta unos medios de conexión entre la rotación del segundo eje primario ZZ' y la rotación del eje secundario YY' que serán descritos posteriormente.For this, the gearbox has some means of connection between the rotation of the second primary axis ZZ 'and the YY 'secondary axis rotation to be described later. 

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Por otro lado, para reducir el volumen del conjunto, el diámetro del motor eléctrico 2 es, preferentemente, inferior a su longitud.On the other hand, to reduce the volume of together, the diameter of the electric motor 2 is preferably less than its length.

El primer eje primario XX' comprende un árbol conductor 3 cuya rotación es accionada por el motor térmico 1, esto a través de un embrague 10 de tipo conocido. El embrague está alojado en un cárter C3.The first primary axis XX 'comprises a tree conductor 3 whose rotation is driven by thermal motor 1, this through a clutch 10 of known type. The clutch is housed in a C3 crankcase.

El árbol impulsor 3 porta cuatro piñones de diámetros diferentes 30, 31, 32 y 33. Estos cuatro piñones son solidarios con la rotación del árbol 3.Drive shaft 3 carries four sprockets of different diameters 30, 31, 32 and 33. These four sprockets are solidarity with the rotation of the tree 3.

Por otro lado, un cojinete 300 asegura el guiado de un extremo del árbol 3, del lado del embrague 10, mientras que el cojinete 310 asegura el guiado del árbol 3, en el otro extremo. Estos dos cojinetes 300 y 310 están alojados en el cárter C1.On the other hand, a bearing 300 ensures the guidance at one end of the shaft 3, on the side of the clutch 10, while the bearing 310 ensures the guidance of the shaft 3, at the other end. These two bearings 300 and 310 are housed in the C1 crankcase.

El eje secundario YY' presenta un árbol impulsado 4, guiado en su movimiento de rotación por los cojinetes 400, 410 situados en sus dos extremos y convenientemente inmovilizado al movimiento de traslación.The secondary axis YY 'presents a driven shaft 4, guided in its rotation movement by bearings 400, 410 located at its two ends and conveniently immobilized at translation movement.

Estos dos cojinetes 400 y 410 están alojados en el cárter C1.These two bearings 400 and 410 are housed in C1 crankcase.

El árbol 4 porta dos pares de piñones 40, 41; 42, 43 que están engranados respectivamente con los piñones 30, 31 y 32, 33 del primer eje primario XX'.Tree 4 carries two pairs of pinions 40, 41; 42, 43 which are meshed respectively with pinions 30, 31 and 32, 33 of the first primary axis XX '.

Los piñones 40 a 43 normalmente están montados locos sobre el árbol 4.The pinions 40 to 43 are normally mounted crazy about the tree 4.

Están previstos unos piñones deslizantes 44 y 45 interpuestos respectivamente entre cada par de piñones 40, 41 y 42, 43 y que son solidarios con la rotación del árbol 4.Sliding gears 44 and 45 are provided interposed respectively between each pair of pinions 40, 41 and 42, 43 and which are in solidarity with the rotation of tree 4.

Por ejemplo, mediante el desplazamiento del piñón deslizante 44, en un sentido o en otro, y siguiendo la dirección longitudinal YY', es posible hacer solidaria la rotación de este piñón deslizante 44 y, correlativamente, la del árbol 4 con la rotación de uno de los dos piñones 40 ó 41, de forma selectiva.For example, by shifting the pinion slide 44, in one direction or another, and following the direction longitudinal YY ', it is possible to make the rotation of this sliding pinion 44 and, correlatively, that of tree 4 with the rotation of one of the two pinions 40 or 41, selectively.

Por otro lado, el árbol 4 presenta un piñón 46 que está situado más allá del cojinete 400. Este piñón 46 engrana con la corona 50 del diferencial 5.On the other hand, tree 4 has a pinion 46 which is located beyond bearing 400. This pinion 46 gears with crown 50 of differential 5.

El diferencial 5 acciona dos semiejes 5a, 5b que portan cada uno de ellos una de las ruedas motrices del vehículo.Differential 5 drives two axles 5a, 5b that they each carry one of the driving wheels of the vehicle.

A continuación se va a analizar el segundo eje primario ZZ' de la caja de cambios según la invención.Next, the second axis will be analyzed primary ZZ 'of the gearbox according to the invention.

El segundo eje primario ZZ' presenta un árbol conductor 7 que está accionado por el motor eléctrico 2, a través de un sistema de transmisión 6.The second primary axis ZZ 'presents a tree conductor 7 which is driven by electric motor 2, through a transmission system 6.

Por otro lado, este árbol conductor 7 está conectado a la rotación del eje secundario YY', mediante de un piñón 70 portado por el árbol 7, por un piñón 47 portado por el árbol conducido 4 y por una cadena 71 que conecta los dos piñones.On the other hand, this conductive tree 7 is connected to the rotation of the secondary axis YY ', by means of a pinion 70 carried by the tree 7, by a pinion 47 carried by the tree driven 4 and by a chain 71 that connects the two sprockets.

Desde luego, la invención no se limita a este modo de realización y los medios de conexión entre la rotación del segundo eje primario ZZ' y la rotación del eje secundario YY' podrían ser construidos de forma diferente y, en particular, presentarse bajo la forma de varios piñones.Of course, the invention is not limited to this. embodiment and the connection means between the rotation of the second primary axis ZZ 'and the rotation of the secondary axis YY' they could be built differently and in particular present in the form of several pine nuts.

Se constata que, en la caja de cambios según la invención, el piñón 47 ocupa el espacio del piñón correspondiente a una quinta relación de velocidad, en una caja de cambios clásica accionada por un motor térmico y que presenta cinco relaciones de velocidad.It is noted that, in the gearbox according to the invention, the pinion 47 occupies the space of the pinion corresponding to a fifth speed ratio, in a classic gearbox driven by a thermal engine and that has five relationships of speed.

La caja de cambios según la invención no presenta pues una dimensión transversal mayor que la correspondiente a una caja de cambios clásica.The gearbox according to the invention does not have therefore a transversal dimension greater than that corresponding to a classic gearbox

La referencia 20 designa una placa portadora que se utiliza para soportar el motor eléctrico 2 y su sistema de transmisión 6.Reference 20 designates a carrier plate that It is used to support the electric motor 2 and its system of transmission 6.

Como se ilustra en la figura 1, los árboles impulsores 3 y 7 y el árbol impulsado 4 atraviesan esta placa portadora.As illustrated in Figure 1, the trees impellers 3 and 7 and driven shaft 4 pass through this plate carrier

Además, los piñones 47 y 70 portados por los árboles 4 y 7 respectivamente están situados más allá de esta placa portadora y están contenidos en un cárter C2 montado sobre esta placa portadora 20.In addition, the pinions 47 and 70 carried by the trees 4 and 7 respectively are located beyond this plate carrier and are contained in a C2 crankcase mounted on this carrier plate 20.

El motor eléctrico 2 presenta un estator 21 que está alojado en el cárter C3, también montado sobre la placa 20.The electric motor 2 has a stator 21 that it is housed in the C3 crankcase, also mounted on the plate 20.

El estator 21 envuelve al rotor 22.Stator 21 envelops rotor 22.

El rotor 22 presenta un árbol tubular 23 que está guiado en el movimiento de rotación por un cojinete 231, situado entre la placa 20 y el motor eléctrico 2, y por otro cojinete 230 dispuesto al otro lado del motor eléctrico 2 y que está alojado en el cárter C3.The rotor 22 has a tubular shaft 23 which is guided in the rotation movement by a bearing 231, located between the plate 20 and the electric motor 2, and by another bearing 230 arranged on the other side of the electric motor 2 and which is housed in the C3 crankcase.

En el modo de realización mostrado en la figura 1, el sistema de transmisión 6 está situado, en relación al motor eléctrico 2, en el lado opuesto a los medios de conexión entre la rotación del segundo eje primario ZZ' y la rotación del eje secundario YY'.In the embodiment shown in the figure 1, the transmission system 6 is located, relative to the engine electrical 2, on the opposite side to the connection means between the rotation of the second primary axis ZZ 'and the rotation of the axis secondary YY '.

Así pues, este sistema de transmisión 6 se encuentra aquí por encima del cárter C3 del embrague 10. Esto permite utilizar el espacio disponible frente a este cárter C3.Thus, this transmission system 6 is found here above the C3 crankcase of clutch 10. This allows to use the available space in front of this C3 crankcase.

Este sistema de transmisión 6 presenta entonces un árbol 60 que porta un primer piñón loco 600.This transmission system 6 then presents a tree 60 that carries a first crazy pinion 600.

El árbol 60 está representado en forma de árbol tubular en la figura 1. Podría estar igualmente concebido en forma de árbol macizo sin salir del marco de la presente invención.Tree 60 is represented as a tree tubular in figure 1. It could also be conceived in shape of solid tree without leaving the frame of the present invention.

El árbol tubular 23 del rotor 22 porta un segundo piñón 601.The tubular shaft 23 of the rotor 22 carries a second pinion 601.

La rotación del árbol 60 es solidaria con la rotación del árbol conductor 7 gracias a unos medios designados por la referencia 610.The rotation of the tree 60 is integral with the rotation of the driving shaft 7 thanks to means designated by reference 610.

El árbol tubular 60 está montado libre en relación al movimiento de rotación del árbol 23 del rotor 2, mediante el cojinete 611.The tubular shaft 60 is mounted free in in relation to the rotation movement of the shaft 23 of the rotor 2, by bearing 611.

Un piñón deslizante 612 está interpuesto entre el árbol 23 del rotor y el árbol 60. Este piñón deslizante 612 es solidario con la rotación del árbol 60.A sliding pinion 612 is interposed between the rotor shaft 23 and shaft 60. This sliding pinion 612 is in solidarity with the rotation of the tree 60.

Por el desplazamiento del piñón deslizante 612, en un sentido o en el otro, siguiendo la dirección ZZ', es posible solidarizar de forma selectiva la rotación de este piñón deslizante 612 y, correlativamente, la del árbol 60, con la rotación del árbol 23 del rotor o con la del primer piñón 600.By the displacement of the sliding pinion 612, one way or the other, following the ZZ 'direction, it is possible selectively support the rotation of this sliding pinion 612 and, correspondingly, that of tree 60, with the rotation of the tree 23 of the rotor or with that of the first pinion 600.

El funcionamiento del sistema de transmisión 6 es el siguiente.The operation of the transmission system 6 is the next.

Cuando el piñón deslizante 612 es desplazado hacia el motor eléctrico 2, las rotaciones del árbol 23 del rotor y del árbol 60 son solidarias, mientras que el primer piñón 600 es loco.When the sliding pinion 612 is displaced towards the electric motor 2, the rotations of the rotor shaft 23 and of tree 60 are solidarity, while the first pinion 600 is crazy.

Así, cuando el motor eléctrico 2 funciona, su potencia se transmite al árbol conductor 7 del segundo eje primario ZZ', por medio del árbol del rotor 23 y del árbol 60; siendo solidarias las rotaciones de los tres árboles: el árbol 7, el árbol del rotor 23 y el árbol 60.Thus, when the electric motor 2 works, its power is transmitted to the driving shaft 7 of the second primary axis ZZ ', by means of the rotor shaft 23 and the shaft 60; being solidarity the rotations of the three trees: the tree 7, the tree of rotor 23 and shaft 60.

Esto proporciona una primera velocidad eléctrica que es una velocidad larga.This provides a first electric speed. That is a long speed.

Cuando el piñón deslizante 612 es desplazado al lado opuesto al motor eléctrico 2, la rotación del árbol 60 es solidaria con la del primer piñón 600.When the sliding pinion 612 is moved to the opposite side of the electric motor 2, the rotation of the shaft 60 is in solidarity with that of the first pinion 600.

Así, en este modo de funcionamiento, el piñón 601 es accionado por el árbol del rotor 23.Thus, in this mode of operation, the pinion 601 It is driven by the rotor shaft 23.

Este piñón 601 engrana con el piñón 603 del eje UU', lo que acciona la rotación del piñón 602.This pinion 601 meshes with pinion 603 of the shaft UU ', which drives the rotation of the pinion 602.

El piñón 602 engrana con el piñón 600, que acciona la rotación del árbol 60, y de este modo el árbol conductor 7, puesto que la rotación del árbol 60 y la rotación del árbol 7 son solidarias.Pinion 602 meshes with pinion 600, which drives the rotation of the shaft 60, and thus the driving shaft 7, since the rotation of the tree 60 and the rotation of the tree 7 are Solidarity

Esto proporciona la segunda velocidad eléctrica, que es una velocidad corta.This provides the second electric speed, That is a short speed.

La relación de desmultiplicación puede ser de 1 para la primera velocidad eléctrica (velocidad larga) y de 1/4 para la segunda velocidad eléctrica (velocidad corta).The gear ratio can be 1 for the first electric speed (long speed) and 1/4 for the second electric speed (short speed).

Así, la caja de cambios según la invención permite disponer de dos relaciones de velocidad eléctricas, independientemente del motor térmico.Thus, the gearbox according to the invention allows to have two electric speed ratios, regardless of the thermal engine.

En la práctica, la primera velocidad puede utilizarse para arrancar el vehículo, mientras que la segunda velocidad permite obtener la velocidad máxima del vehículo.In practice, the first speed can be used to start the vehicle while the second speed allows to obtain the maximum speed of the vehicle.

Estas dos velocidades eléctricas permiten asegurar igualmente la transición durante el paso de una velocidad térmica a otra, sin ruptura del par.These two electric speeds allow also ensure the transition during the passage of a speed thermal to another, without breaking the pair.

Por otro lado, el sistema de transmisión puede estar concebido para más de dos relaciones de velocidad.On the other hand, the transmission system can Be designed for more than two speed ratios. 

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A continuación el texto se refiere a la figura 2 que muestra una segunda variante de realización de la caja de cambios según la invención.Next the text refers to figure 2 which shows a second embodiment of the box of changes according to the invention.

La estructura general de la caja de cambios no se modifica, particularmente en lo que concierne al primer y segundo eje primarios XX' y ZZ', el eje secundario YY', la conexión entre la rotación del segundo eje primario ZZ' y la rotación del eje secundario YY' y la disposición relativa del motor eléctrico 2 y del motor térmico 1.The general structure of the gearbox is not modifies, particularly as regards the first and second primary axis XX 'and ZZ', the secondary axis YY ', the connection between the rotation of the second primary axis ZZ 'and the rotation of the axis YY 'secondary and the relative arrangement of the electric motor 2 and the thermal engine 1.

Por el contrario, el sistema de transmisión 9 entre el motor eléctrico 2 y el árbol conductor 8 del segundo eje primario ZZ' está situado entre el motor eléctrico 2 y los medios de conexión entre la rotación del segundo eje primario ZZ' y la rotación del eje secundario YY'.On the contrary, the transmission system 9 between the electric motor 2 and the drive shaft 8 of the second shaft primary ZZ 'is located between the electric motor 2 and the means of connection between the rotation of the second primary axis ZZ 'and the YY 'secondary axis rotation.

En esta variante de realización, la caja de cambios puede ser menos compacta que la mostrada en la figura 1.In this variant embodiment, the box of Changes may be less compact than shown in Figure 1.

En efecto, es posible que el volumen del cárter de embrague C3 no permita desplazar suficientemente el motor eléctrico 2 hacia el motor térmico 1.Indeed, it is possible that the crankcase volume of clutch C3 does not allow the engine to move sufficiently electric 2 to the thermal motor 1.

En este caso, los dos ejes primarios y el eje secundario deben alargarse para integrar el sistema de transmisión. Esta es la situación mostrada en la figura 2.In this case, the two primary axes and the axis secondary must be lengthened to integrate the transmission system. This is the situation shown in Figure 2.

En esta variante de realización, el árbol 24 del rotor 22 del motor eléctrico 2 es macizo y está aproximadamente alineado con el árbol conductor 8 del segundo eje primario ZZ'.In this variant embodiment, tree 24 of the rotor 22 of electric motor 2 is solid and is approximately aligned with the driving shaft 8 of the second primary axis ZZ '.

El sistema de transmisión 9 presenta un árbol 90 que lleva un primer piñón loco 900.The transmission system 9 has a shaft 90 which carries a first crazy 900 pinion.

En el ejemplo ilustrado en la figura 2, el árbol 90 es un árbol macizo. Podría estar igualmente concebido bajo la forma de un árbol tubular sin salir del marco de la presente invención.In the example illustrated in Figure 2, the tree 90 is a solid tree. It could also be conceived under the shape of a tubular tree without leaving the frame of the present invention.

La rotación del árbol 90 es solidaria con la del árbol conductor 8.The rotation of the tree 90 is integral with that of the conductive tree 8.

El árbol 90 está montado libre en relación a la rotación del árbol del rotor 24 mediante un cojinete 910.The shaft 90 is mounted free in relation to the Rotation of the rotor shaft 24 by means of a bearing 910.

Por otro lado, el árbol del rotor 24 lleva un segundo piñón 901 cuya rotación es solidaria con la de este árbol.On the other hand, the rotor shaft 24 carries a second sprocket 901 whose rotation is integral with that of this tree.

Finalmente, estos dos piñones 900 y 901 engranan con dos piñones 902 y 903 que son portados por el eje intermedio UU', siendo solidarias sus rotaciones.Finally, these two pinions 900 and 901 mesh with two sprockets 902 and 903 that are carried by the intermediate shaft UU ', their rotations being in solidarity.

Un piñón deslizante 911, llevado por el árbol 90, está interpuesto entre los piñones 900 y 901.A sliding pinion 911, carried by the tree 90, It is interposed between pinions 900 and 901.

Permite solidarizar selectivamente el primer piñón 900 con el árbol 90 o el árbol 90 con el árbol 24 del rotor.Allows selectively solidarity the first pinion 900 with tree 90 or tree 90 with tree 24 of rotor.

El funcionamiento del sistema de transmisión es el siguiente.The operation of the transmission system is the next.

Cuando el piñón deslizante 911 está desplazado hacia el motor eléctrico 2 y mientras el motor eléctrico 2 funciona, la potencia del motor eléctrico 2 se transmite totalmente al árbol 8, por medio del árbol 90 que es solidario con los árboles 24 y 8.When the sliding pinion 911 is displaced towards the electric motor 2 and while the electric motor 2 is running, the power of the electric motor 2 is transmitted completely to the shaft 8, by means of tree 90 which is integral with trees 24 and 8.

El árbol 8 acciona el eje secundario YY', por los medios de enlace de la rotación 70, 71 y 47 que han sido descritos anteriormente en relación a la figura 1, según una primera velocidad (larga).Tree 8 drives the secondary axis YY ', by rotation means 70, 71 and 47 that have been described above in relation to figure 1, according to a first speed (long)

Cuando el piñón deslizante 911 está desplazado hacia la placa 20, el piñón 900 se solidariza con el árbol 90.When the sliding pinion 911 is displaced towards plate 20, pinion 900 is in solidarity with tree 90.

En este modo de funcionamiento, el piñón 901 es accionado por el árbol del rotor 24.In this mode of operation, pinion 901 is driven by rotor shaft 24.

Este piñón engrana con el piñón 903 del eje intermedio UU', lo que acciona la rotación del piñón 902 de este mismo eje intermedio.This pinion meshes with pinion shaft 903 intermediate UU ', which drives the rotation of the pinion 902 of this Same intermediate shaft.

Entonces este piñón 902 engrana con el piñón 900, lo que acciona la rotación del árbol conductor 8, siendo solidaria la rotación del árbol 90 con la del árbol conductor 8.So this pinion 902 meshes with pinion 900, what drives the rotation of the driving shaft 8, being solidary the rotation of the shaft 90 with that of the drive shaft 8.

Esto proporciona una segunda velocidad (corta).This provides a second speed. (short).

Entonces esto permite, como para la primera variante de realización ilustrada en la figura 1, disponer de dos relaciones de velocidad eléctricas, con las correspondientes ventajas.Then this allows, as for the first variant embodiment illustrated in figure 1, have two electrical speed ratios, with the corresponding advantages.

Los signos de referencia insertados después de las características técnicas que figuran en las reivindicaciones tienen como único objetivo facilitar la comprensión de éstas últimas y no limitarían su alcance.The reference signs inserted after the technical characteristics contained in the claims Their sole objective is to facilitate the understanding of the latter and would not limit its scope.

Claims (9)

1. Caja de cambios para vehículos de propulsión híbrida, realizada a partir de un motor térmico y/o de un motor eléctrico, que presenta como mínimo un primer eje principal (XX') motriz accionado en rotación por el motor térmico (1) a través de un embrague (10), así como un eje secundario (YY') receptor del movimiento, caracterizada porque presenta un segundo eje primario (ZZ') motriz, siendo paralelos los ejes primarios (XX', ZZ') y el eje secundario (YY'), siendo este segundo eje primario (ZZ') accionado en rotación por el motor eléctrico (2) a través de un sistema de transmisión (6, 9), y porque comprende un árbol conductor (7, 8) que porta en un de sus extremos unos medios (70) de conexión de la rotación con el eje secundario (YY'), y porque dicho sistema de transmisión (6, 9) permite transmitir la potencia del motor eléctrico (2) al árbol conductor (7, 8), sea sin desmultiplicación, sea según una relación de desmultiplicación determinada.1. Gearbox for hybrid propulsion vehicles, made from a thermal engine and / or an electric motor, which has at least a first main axle (XX ') drive driven in rotation by the thermal engine (1) a through a clutch (10), as well as a secondary axis (YY ') receiving the movement, characterized in that it has a second primary motor axis (ZZ'), the primary axes (XX ', ZZ') and the secondary axis being parallel (YY '), this second primary axis (ZZ') being driven in rotation by the electric motor (2) through a transmission system (6, 9), and because it comprises a driving shaft (7, 8) that carries at one of its ends means (70) for connecting the rotation with the secondary axis (YY '), and because said transmission system (6, 9) allows transmitting the power of the electric motor (2) to the driving shaft (7 , 8), be it without demultiplication, be it according to a given demultiplier relationship 2. Caja de cambios según la reivindicación 1, caracterizada porque el sistema de transmisión (6, 9) presenta:2. Gearbox according to claim 1, characterized in that the transmission system (6, 9) has: - un árbol (60, 90) que porta un primer piñón loco (600, 900) y que es solidario con la rotación del árbol conductor (7, 8),- a tree (60, 90) that carries a first pinion crazy (600, 900) and that is in solidarity with the rotation of the tree driver (7, 8), - un segundo piñón (601, 901) portado por el árbol del rotor (23, 24) del motor eléctrico (2) cuya rotación es solidaria,- a second pinion (601, 901) carried by the rotor shaft (23, 24) of the electric motor (2) whose rotation is solidarity, - un piñón deslizante (612, 911) susceptible de solidarizar el árbol (60, 90) con el árbol del rotor (23, 24) o con el primer piñón loco (600, 900), y- a sliding pinion (612, 911) capable of solidarity the shaft (60, 90) with the rotor shaft (23, 24) or with the first crazy pinion (600, 900), and - un eje intermedio (UU') que porta dos piñones (602, 603; 902, 903) solidarios en rotación y que engranan con el primer y el segundo piñón (600, 601; 900, 901).- an intermediate shaft (UU ') that carries two pinions (602, 603; 902, 903) solidarity in rotation and that engage with the first and second sprockets (600, 601; 900, 901). 3. Caja de cambios según la reivindicación 1 ó 2, caracterizada porque el sistema de transmisión (6) está dispuesto en un extremo del motor eléctrico (2), opuesto al de los medios (70) de conexión en la rotación entre el árbol conductor (7) del segundo eje primario y el eje secundario (YY').3. Gearbox according to claim 1 or 2, characterized in that the transmission system (6) is arranged at one end of the electric motor (2), opposite to the connection means (70) in the rotation between the driving shaft (7) of the second primary axis and the secondary axis (YY '). 4. Caja de cambios según la reivindicación 3, caracterizada porque el árbol (23) del rotor del motor eléctrico (2) es tubular y envuelve el árbol (60) del sistema de transmisión (6).4. Gearbox according to claim 3, characterized in that the shaft (23) of the electric motor rotor (2) is tubular and envelops the shaft (60) of the transmission system (6). 5. Caja de cambios según la reivindicación 1 ó 2, caracterizada porque el sistema de transmisión (9) está dispuesto entre el motor eléctrico (2) y los medios (70) de conexión en rotación entre el árbol conductor (8) del segundo eje primario y el eje secundario (YY').5. Gearbox according to claim 1 or 2, characterized in that the transmission system (9) is arranged between the electric motor (2) and the connection means (70) in rotation between the driving shaft (8) of the second shaft primary and secondary axis (YY '). 6. Caja de cambios según la reivindicación 5, caracterizada porque el árbol (24) del rotor del motor eléctrico (2), el árbol (90) del sistema de transmisión (9) y el árbol conductor (8) están prácticamente alineados.6. Gearbox according to claim 5, characterized in that the shaft (24) of the electric motor rotor (2), the shaft (90) of the transmission system (9) and the driving shaft (8) are practically aligned. 7. Caja de cambios según una de las reivindicaciones 1 a 6, caracterizada porque los medios de conexión entre la rotación del segundo eje primario (ZZ') y la rotación del eje secundario (YY') presentan un piñón (70) portado por el árbol conductor (7, 8) del segundo eje primario, otro piñón (47) portado por el árbol conducido (4) del eje secundario (YY') y una correa (71) de conexión entre estos dos piñones.7. Gearbox according to one of claims 1 to 6, characterized in that the connection means between the rotation of the second primary axis (ZZ ') and the rotation of the secondary axis (YY') have a pinion (70) carried by the driving shaft (7, 8) of the second primary shaft, another pinion (47) carried by the driven shaft (4) of the secondary shaft (YY ') and a connecting belt (71) between these two pinions. 8. Grupo motopropulsor para vehículos de propulsión híbrida que comprende un motor térmico (1) y un motor eléctrico (2) dispuesto en la periferia de la caja de cambios del vehículo, siendo esta caja de cambios según una de las reivindicaciones 1 a 7.8. Drive group for vehicles hybrid propulsion comprising a thermal engine (1) and an engine electric (2) arranged on the periphery of the gearbox of the vehicle, this gearbox being according to one of the claims 1 to 7. 9. Grupo motopropulsor según la reivindicación 8, en el cual el motor eléctrico (2) y el segundo eje primario (ZZ') están situados por encima del primer eje primario (XX') y del eje secundario (YY').9. Power unit according to claim 8, in which the electric motor (2) and the second primary axis (ZZ ') are located above the first primary axis (XX ') and the axis secondary (YY ').
ES02290383T 2001-02-19 2002-02-18 GEARBOX FOR A HYBRID PROPULSION VEHICLE. Expired - Lifetime ES2234989T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0102213A FR2821136B1 (en) 2001-02-19 2001-02-19 GEARBOX FOR HYBRID POWERED VEHICLE, WITH A TRANSMISSION SYSTEM ASSOCIATED WITH THE ELECTRIC MOTOR
FR0102213 2001-02-19

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EP1232890B1 (en) 2005-01-19
ATE287344T1 (en) 2005-02-15
EP1232890A3 (en) 2003-01-02
FR2821136A1 (en) 2002-08-23
FR2821136B1 (en) 2003-05-16
DE60202634T2 (en) 2006-01-05
DE60202634D1 (en) 2005-02-24
EP1232890A2 (en) 2002-08-21

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